(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.



Fig. 3. (A) Histogram of O2 partial pressure in rat cerebral cortex (PtO2) obtained by making multiple cortical penetrations (in 100 µm steps) with an O2-sensitive platinum microelectrode during normoxia. The histogram was constructed from 136 measurements taken from 13 rats. (B) Histogram of PtO2 taken from telencelphalon of the freshwater diving turtle (P. scripta). Histogram constructed from 71 samples from 11 turtles. The class interval in both A and B is 1 torr. Reprinted by permission from Sick et al. (1982).